Improvement in glass-furnaces



w. LEIGHTON, 1r.

Glass Furnaces.

Patented August 19, HST/3,

iep.:

PATENT WILLIAM LE'IGHToN, JE., oE WHEELING, WEsT `VIRGINIA.

IMPROVEMENT IN GLASSFU RNACES.

Specification forming part of Letters Patent No. 141,935, dated August 19, 1873; application led March 26, 1873.

To all whom it may concern:

Be it known that I, WILLIAM LEIGHToN,

VJr., residing at Wheeling, in the county of Ohio and State of West Virginia, have invented a certain Improvement on Glass-Furnaces, of which the following is a specification `into the body of the fuel, the pipe being passed through the space between the cupola and the hood, so that the air, in iiowing through this portion of the pipe, will be heated, and thus be in better condition to aid in the combustion of the fuel.

Figure l is an elevation of my improved tinishing-furnace. Fig. 2 is a vertical section of the same. Fig. 3 is a horizontal section.

The same letters of reference are employed in all the figures in the design ation of identical parts.

The cupola A of the furnace lis built upon a suitable base, B, containing the re-pot B1 centrally under the cupolagrates B2, and chamber B3 underneath the latter. This chamber, serving the twofold purpose of air-chamber thereon.

I and ash-pit, is Walled in on three sides, and

on the fourth side covered by a door, B4, so constructed and arranged that it will shut, practically, air-tight. 'Ihe working-holes A', through which the articles to be finished are introduced into the cupola, also serve as draftholes, through which the products of combustion vescape under the circular overhangin g hood C, which conducts them to the chimney D. The hood may be supported by pillars 0^ upon the base B, or in any other suitable manner. The blast-pi pe E passes through the wall of the hood C, down between it and the cupola, so as to exposea section of it to the hot gases passing up the hood to heat the air before it enters the air-chamber B, Where the blastpipe terminates, forcing the blast directly through the gratcs into thc body of the fuel The fuel used in this furnace will be bituminous coal.

What I claim as my inventiolnand desire to secure by Letters Patent, is

In combination with a glass-furnace, the blast-pipe E, passing through the hood and leading into the air-chamber for conveying a heated blast to the furnace, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing u itnesses. A WILLIAM LEIGHTON, J R.

Witnesses:

JOHN HEINLIN, ZEEE LOHMANN.

EEIcE 

